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block: Drop backing_bs()

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We want to make it explicit where bs->backing is used, and we have done
so.  The old role of backing_bs() is now effectively taken by
bdrv_cow_bs().

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Max Reitz 2019-04-01 22:16:14 +02:00 committed by Kevin Wolf
parent 4a2061e66d
commit f1a7f18f07
1 changed files with 0 additions and 5 deletions
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5
include/block/block_int.h
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@ -1003,11 +1003,6 @@ typedef enum BlockMirrorBackingMode {
MIRROR_LEAVE_BACKING_CHAIN,
} BlockMirrorBackingMode;
static inline BlockDriverState *backing_bs(BlockDriverState *bs)
{
return bs->backing ? bs->backing->bs : NULL;
}
/* Essential block drivers which must always be statically linked into qemu, and
* which therefore can be accessed without using bdrv_find_format() */